/**
 * Copyright (c) 2016-2019 人人开源 All rights reserved.
 *
 * https://www.renren.io
 *
 * 版权所有，侵权必究！
 */

package io.bsly.common.exception;

import io.bsly.common.utils.R;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.dao.DuplicateKeyException;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;
import org.springframework.web.servlet.NoHandlerFoundException;

import javax.validation.ConstraintViolationException;
import java.util.HashMap;
import java.util.Map;

/**
 * 异常处理器
 *
 * @author Mark sunlightcs@gmail.com
 */
@RestControllerAdvice
public class RRExceptionHandler {
	private Logger logger = LoggerFactory.getLogger(getClass());

	/**
	 * 处理自定义异常
	 */
	@ExceptionHandler(RRException.class)
	public R handleRRException(RRException e){
		R r = new R();
		r.put("code", e.getCode());
		r.put("msg", e.getMessage());

		return r;
	}

	@ExceptionHandler(NoHandlerFoundException.class)
	public R handlerNoFoundException(Exception e) {
		logger.error(e.getMessage(), e);
		return R.error(404, "路径不存在，请检查路径是否正确");
	}

	@ExceptionHandler(DuplicateKeyException.class)
	public R handleDuplicateKeyException(DuplicateKeyException e){
		logger.error(e.getMessage(), e);
		return R.error("数据库中已存在该记录");
	}

	@ExceptionHandler(Exception.class)
	public R handleException(Exception e){
		logger.error(e.getMessage(), e);
		return R.error();
	}


	/**
	 * 		@Validated controller 参数添加该注解  ，  实体类属性添加 校验注解
	 *      <dependency>
	 * 			<groupId>org.springframework.boot</groupId>
	 * 			<artifactId>spring-boot-starter-validation</artifactId>
	 * 		</dependency>
	 * @param exception 参数异常全局校验
	 * @return
	 */
	@ExceptionHandler(value = MethodArgumentNotValidException.class)
	public R handleValidException(MethodArgumentNotValidException exception){
		Map<String,String> map=new HashMap<>();
		BindingResult bindingResult = exception.getBindingResult();
		bindingResult.getFieldErrors().forEach(fieldError -> {
			String message = fieldError.getDefaultMessage();
			String field = fieldError.getField();
			map.put(field,message);
		});
		logger.error("数据校验出现问题{},异常类型{}",exception.getMessage(),exception.getClass());
		return R.error(400,"数据校验出现问题").put("data",map);
	}

	@ExceptionHandler(value = ConstraintViolationException.class)
	public R ConstraintViolationException(ConstraintViolationException exception){
		logger.error("数据校验出现问题{},异常类型{}",exception.getMessage(),exception.getClass());
		return R.error(400,"数据校验出现问题").put("data",exception.getMessage());
	}

}
